FYI - port 5000 used by default on macOS

[aidanbh]

Just an FYI in case anyone else is wondering why they are getting an error such as:

Error: listen EADDRINUSE: address already in use :::5000

when running the e02 starter code with npm test.

If you have the AirPlay Receiver service (built in to macOS) turned on, then macOS is already using port 5000 at all times. It can be turned off in General > AirDrop and Handoff on macOS 13 or in the Sharing preference pane on older versions. Or you could just change the port in package.json but that might break the autograder, idk.